HYM64V2005GU Просмотр технического описания (PDF) - Siemens AG
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HYM64V2005GU Datasheet PDF : 14 Pages
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HYM 64(72)V2005GU-50/-60
2M x 64/72 DRAM Module
Serial Presence Detects:
A serial presence detect storage device -- EEPROM 24C02 -- is assembled on to the module.
Information about the modul confuguration, speed, etc. is written into the EEPROM device during
module production using a serial presence detect protocol ( I 2C synchronous 2-wire bus).
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15-31
32
33-61
62
63
64-127
128-
255
Byte#
Description
SPD Entry Value
Number of SPD bytes
Total bytes in Serial PD
Memory Type
Number of Row Addresses
Number of Column Addresses
Number of DIMM Banks
Module Data Width
Module Data Width (contd’ )
Module Interface Levels
RAS access time
CAS access time
Dimm Config (Error Det/Corr.)
Refresh Rate/Type
Primary DRAM data width
Error checking DRAM data width
reserved for future offerings
Superset Memory Type
Superset information (may be used in
future)
SPD Revision Designator
Checksum for bytes 0-62
Manufacturer Information (optional)
Unused Storage Locations
128
256
EDO
11
10
1
x64 / x72
0
LVTTL
50 / 60 ns
13 / 15 ns
none / ECC
normal
15.6µs
x8
none / x 8
NA
NA
Rev. 1.0
64
V2005
GU-50
80
08
02
0B
0A
01
40
00
01
32
0D
00
00
08
00
FF
FF
FF
01
0C
FF
FF
Hex
HYM
64
72
V2005 V2005
GU-60 GU-50
80
80
08
08
02
02
0B
0B
0A
0A
01
01
40
48
00
00
01
01
3C
32
0F
0D
00
02
00
00
08
08
00
08
FF
FF
FF
FF
FF
FF
01
01
06
XX
FF
FF
FF
FF
72
V2005
GU-60
80
08
02
0B
0A
01
48
00
01
3C
0F
02
00
08
08
FF
FF
FF
01
18
FF
FF
Semiconductor Group
13
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